Septic System Installation & Repairs
At EarthTech Excavation & Septic, we provide professional, code-compliant septic system installations designed to protect your property and groundwater — with clear, upfront pricing.
We know what matters— a job done right. We treat every project like it’s for our own home, making sure your family has a solid foundation to build on. Reliable, honest work from our family to yours.
Protecting our Environment
Creating good paying jobs
Building Affordable Housing
Quality 5-star work
We Beat the Competition On Price
We specialize in Type I (conventional) septic systems—the most efficient choice when your property qualifies. Unlike most companies in Central Texas, we publicly list our pricing right here on our website, because we believe in transparency, honesty, and educating our customers.
We evaluate your site and install the system that’s right for your land and your wallet. Our pricing is all-inclusive:
Permits
Site/soil evaluation
Excavation and trenching
Materials and tanks
Installation labor
Inspection coordination
Final cover and finish
You might find cheaper quotes out there. Just keep in mind that cheaper upfront often means more expensive later. A lot of low bids don’t include permits and inspections, or once they start digging, the price jumps fast.
At EarthTech, we price it right from the start. We’re licensed, field-ready, and we handle everything in-house—no surprises, no subcontractors, and we deliver on time. If you'd like, we can review the cheaper quote with you and help compare apples to apples.
Our Services
Conventional (Standard) System
Best for: Deep, well-draining soils
A basic system using a septic tank and gravel-filled drainfield. Wastewater is filtered naturally through the soil. Cost effective and durable.
🏡3 Bedroom: $7,183 - $10,760
🏡4 Bedroom: $7,403 - $10,960
🏡5 Bedroom: $7,700 – $11,230
Low Pressure Dosing System
Best for: Clay-heavy or shallow soils
Adds a pump tank that distributes effluent in timed, pressurized doses across a drainfield. Prevents over-saturation and extends field life.
🏡3 Bedroom: $11,000 – $14,230
🏡4 Bedroom: $11,330 – $14530
🏡5 Bedroom: $12,320– $15,430
Aerobic Treatment Unit (ATU) w/ Spray
Best for: Small lots, poor soils, or environmentally sensitive areas
Uses oxygen to break down waste. Treated water is disinfected and sprayed on the surface via sprinkler heads.
🏡3 Bedroom: $12,100 – $15,230
🏡4 Bedroom: $12,320 – $15,430
🏡5 Bedroom: $13,860 – $16,830
Drip Irrigation System
Best for: Tight lots, shallow soils, or sloped terrain
Distributes treated wastewater underground through drip tubing. Ideal for minimal surface impact.
🏡3 Bedroom: $12,540 – $15,630
🏡4 Bedroom: $12,870 – $15,930
🏡5 Bedroom: $14,740 – $17,630
Mound System
Best for: Sites with high water tables, shallow bedrock, or poor natural drainage
Wastewater is pumped into a sand-filled raised mound where it filters before reaching natural soil.
🏡3 Bedroom: $12,980 – $16,030
🏡4 Bedroom: $13,310 – $16,330
🏡5 Bedroom: $15,510 – $18,330
✔Includes Soil Testing ✔Engineered Design ✔Permits ✔Installation ✔Final Grade
✔ All prices listed are estimates and subject to change without notice. Final pricing will be confirmed during the site evaluation and contract phase.
⚠️ Additional Costs (If Applicable):
⚠️Rock Clause: If excavation hits rock, extra charges apply based on time, equipment, and volume. You'll get a change order before we proceed.
⚠️Difficult Access: Extra fees may apply for steep terrain, long hose runs, limited equipment access, or site obstructions.
⚠️Long Distance: Our service area extends to 150 miles from Austin. Mileage fee applies over 50 miles.
Septic System Repair
$6,350 – $18,161
💪Tank Crack Sealing
💪Baffle & Riser Replacement
💪Drain Field Repairs
Tank Pump Outs
🚨Emergency
Septic Tank Pump Outs
